Pith Number

pith:256ZEZEF

pith:2004:256ZEZEFQSGS52LW45MYDASADQ

not attested not anchored not stored refs pending

The spatial clustering of X-ray selected AGN and galaxies in the Chandra Deep Field South and North

AUI), C. Norman (JHU, E. Daddi (ESO), G. Hasinger (MPE), G. Szokoly (MPE), G. Zamorani (INAF-Bologna), J. Bergeron (IAP), P. Rosati (ESO), P. Tozzi (INAF-Trieste), R. Giacconi (JHU, R. Gilli (INAF-Arcetri), S. Borgani (INFN), STScI), V. Mainieri (MPE), W. Zheng (JHU)

arxiv:astro-ph/0409759 v1 · 2004-09-30 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{256ZEZEFQSGS52LW45MYDASADQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T16:44:53.426507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d77d926485848d2ee976e7598182401c0cb6edc37f1927a3206a5a03abbe38eb

Aliases

arxiv: astro-ph/0409759 · arxiv_version: astro-ph/0409759v1 · doi: 10.48550/arxiv.astro-ph/0409759 · pith_short_12: 256ZEZEFQSGS · pith_short_16: 256ZEZEFQSGS52LW · pith_short_8: 256ZEZEF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/256ZEZEFQSGS52LW45MYDASADQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d77d926485848d2ee976e7598182401c0cb6edc37f1927a3206a5a03abbe38eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e794f7846d68aadfef45d2ebba34ff819ea86deb6835d456def9ce75b3fae862",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-30T14:12:11Z",
    "title_canon_sha256": "83a6540aabff6e05dc6b2cfc79eed9c5bd9cd6e3401b18fbb042a7d095898d4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409759",
    "kind": "arxiv",
    "version": 1
  }
}